Mosquito season in Andrews County, TX: when it starts and ends
Mosquito months in Andrews County
In a normal year mosquito season in Andrews County, TX starts around March 4 and ends around November 25, about 38 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Andrews County, and when
- Start tipping out standing water weekly by February 18.
- Book any yard treatment for early March, ahead of the July peak.
- Repellent can go away after November 25.
- No West Nile cases since 2016, so bites in Andrews County are a nuisance; check window screens.
Andrews County against the rest of TX
Andrews County has the 123rd longest season of 254 TX counties, at 266 days against 365 in Cameron County and 191 in Lipscomb County. Its mean temperature is 64.8°F.
- Hays County: March 4 to November 26 (267 days, 6 WNV)
- Mason County: March 4 to November 26 (267 days, 0 WNV)
- Reagan County: March 4 to November 25 (266 days, 0 WNV)
- Sabine County: March 4 to November 25 (266 days, 0 WNV)
West Nile in Andrews County
From 1999 to 2025, CDC ArboNET counted 26 human West Nile cases in Andrews County (18 neuroinvasive) across 6 years. The worst was 2012 with 12; the latest was 2013.
Background: when mosquitoes go away for the winter; how the dates are worked out.